Leander g



.(No Model.)

L. CT. GILBERT.

GAR HEATER.

No. 394,354. Patented Deo. 11, 1888.

@ fm @n F? @afg Ej WM UNITED STATES PATENT OEEICE.

LEANDER G. GILBERT, OF BUFFALO, NET YORK, ASSIGNOR OF ONE-.HALF TOTOBIAS 'ITMER, .I R., OF SAME PLACE.

CARHHEATER.

SPECIFICATION forming part of Letters Patent No. 394,354, dated December11, 1888.

Application filed March 26, 1888. Serial No. 268,482. (No model.)

To LZZ whom it may concern:

Re it known that I, LEANDER G. GILBERT, of the city ot' Buffalo, in thecounty ot' Erie and State ot' New York, have il'iventet'l new anduset'ul Inqjirovements in Oar-Irleat-ers, ot' which the following is aspecification.

rlhis invention relates to that class of carheaters which are providedwith a hot-water boiler and radiat-i11g-pipes, whereby the hot water iscirculated through the car, and more particularly to an improvement inthe heater described and shown in Letters Patent of the United StatesNo. 377,934, dated February 14, 1888. In the heater ot' this patent anannular water-chamber or boiler surrounds the fire-pot and lamepassage,and the latter .is inovably arranged upon the )fire-pot and providedwith means whereby the joint between the flame-chamber and fire-pot isautomatically broken in case ot' an accident to the car, therebyadmittin the water in the boiler to the fire-pot and extinguishing thetire. A portion of the water entering the ire-pot is converted intosteam, and the expansive force of the latter eXpels a portion of thewater through the chimney; but as the latter is too smallto allow allol' the water and steam to escape a portion thereoll passes through thegrate into the ash-pit, and t'rom the latter into the car through theash-pit door, which is obj ection able.

rlhe object of my invention is to improve the construction of theheater, so as to avoid this objection; and the invention consists of theimprovements which will be hereinafter i'ull y described, and pointedout in the claims.

In the accompanying drawings, Figure l is a sectional elevation ot' myimproved carheater and one end of a railway-car. Fig. 2 is a sideelevation ot the heater. Fig. 3 is a sectional elevation of the upperportion of the heater with the actuating mechanism removed.

Like letters ot' reference reier to like parts in the several ligures.

A represents the outer inclosing-shell or boiler of the heater, which isrigidly secured to the lioor of the car.

A is the nre-box or combustion-ehalnber, arranged in the lower portionthereof, and

having a fuel-door, (l. and A2 is the grate ar ranged in the tire-box.The hre-box A extends through an opening formed in the Hoor oi' the car,and is open at its lower end, so

that the contents of the tire-box can be discharged directly upon theground.

B represents a series otf vertical tubes or tlues arranged within theboiler A, and eX- tending from the tire-box A to a smoke box or chamber,l-, arranged at the upper end of 6o the boiler.

Z) is the smoke-pipe or chilnne)v connected with the smoke-box B', andextending through the root' of the car.

c represents the feedpipe of the boiler A,

whereby the water is introduced into the boiler from a tank arranged inthe car, or from any other source of supply, and c are theradiating-pipes connected with the boiler A,

and through which hot water is circulated 7o through the car.

The fire-box A is provided in its top with an inlet opening or pipe, D,which is closed by a vertically-1novable cap or tube, E, so that byraising said tube from the pipe D t-he water in the boiler A will beadmitted to the tire-box A and the tire be extinguished. The top ot' theinlet-pipe D is provided with an annular groove or recess, d, into whichthe bottom ot' the cap or tube E lits, and a paek- 8o ing of asbestus isarranged in the recess CZ, so as to torni a tight joint between thelower end of the tube E and the inlet-pipe D. The upper end of the tubeE extends through a central opening formed in the top of the boiler H isa horizontal plate formed on or secured to the upper end of the tube E,and 7L is a horizontal shaft j ournaled in suitable bearings secured tothe upper side of said plate.

I I represent flanged pulleys secured to the ends of the shaft 7L, andz' z' are chains or caz .wi

The tube E is provided below the 9o bles fastened at one end to thepulleys I I and at their opposite end to an arm or projection secured tothe outer side of the boilerA. The shaft 7L is provided at one end witha detachable crank, 7L', for turning it.

J J represent elliptical springs arranged on opposite sides of the tubeE and interposed between the under side of the horizontal plate H andthe gland f' of the stuiiing-box f. These springs tend to raise theplate H and tube E when the shaft 7i. is released, and thereby break theconnection between said tube and the inlet-pipe D. The springs J J alsoserve to force the gland f into its seat in the stuffing-box, andthereby maintain a tight joint at this point at all times.

K represents a ratchet-wheel secured to the shaft 7L, and k is a pawlpivoted to an arm, 71;', secured to the plate H and engaging' with aratchet-wheel, K.

L represents a depending weighted lever mounted loosely on the shaft 7i,so as to swing thereon. The lever L is provided with a short arm, l,which engages against a V-shaped proj ection or lug, on., formed on thepawl 7a. Upon turning the shaft 72 in the proper direction by means ofthe crank 7L' the cables are wound upon the pulleys I I, the plate H andtube E are depressed, so as to seat the lower end of the latter firmlyupon the inlet-pipe D of the fire-box, and the springs J J arecompressed. The parts are now in position for use, and are held in placeby the pawl 7c engaging with the ratchet-wheel K. \Vheu the car assumesan abnormal position in case of an accident to the train, the upsettingor tilting of the car causes the lever L to swing upon its pivot, andits arm Z, engaging against the projection m, of Vthe pawl k, lifts thelatter out of engagement with the ratchet-wheel K. This movementreleases the shaft h and cables 1', and the springs J J now force theplate Il and tube E upwardly and break the joint between the tube andthe inlet-pipe D of the fire-box,

thereby permitting the water in the boiler to ent-er the lire-pot andextinguishing the fire. A portion of the water and steam escapes intothe chimney through the iiues B and smokeboX B', while the remainingportion thereof passes through the grate A2 and escapes through the openbottom of the fire-box. By this construction of the fire-box the steamgenerated in the fire-box, when the water enters the same, iinds a freevent through the open bottom of the fire-box, thereby preventing aportion of the contents of the fire-box from being forced into the carand injuring the passengers.

N represents a circular plate journaled in the lower open end of thefire-box below thel grate A2, and which forms a damper for regulatingthe draft to the lire-box, and also serves as a movable bottom forclosing the lower end of the fire-box and preventing einders fromdropping out.. of the lire-box when the car y stands in a depot or otherplace which is liable to take iire. The damper N is provided with anumber of perforations, as shown, so as to admit air to the fire-boxwhen the damper is entirely closed, the perforations being so small asto retain the cinders. One of the pivots or journals of the damper N isprovided with a crank, n, which is connected to the lower end of auadjusting-rod, 0, extending upwardlythrough an opening in the car-H001'.

o is an adjustable collar secured to the rod o, and which is adapted tobear against the floor of the car, so as to hold the damper in anydesired position. 3y raising or lowering this collar on the rod o thedamper can be closed to a greater or less extent.

p represents a rod pivoted at its upper end to the'shaft 7L, andprovided at its lower end with a link, p', in which is arranged a pin,p2,- secured to the upper end of the rod o. The linkp' is of suiiicientlength to permit the rod to be raised and lowered on the same foradjusting the damper without disturbing the position of the rod p.X'Vhen the shaft 7L is released and elevated in case of an accident,

the rod j) is also drawn upwardly, thereby raising the lower rod, 0, bymeans of the pin p2 and opening the damper N. In this manner the damperis automatically opened at the same time that the water is dischargedinto the lire-pot, thus leaving the bottom of the iire-pot unobstructedand allowing the steam and water to escape therefrom.

I claim. as my inventionl. The combination, with the boiler A, providedwith a smoke-box, IS', of the nre-box A', arranged within the same andprovided with an open bottom and with an inlet-opening in its top, amovable cap or tube, E, closing said opening, and iiues B, connectingthe tire-box with the smoke-box, substantially as set forth.

2. The combination, with the boiler A, provided with a smoke-box, B',and a central openin g extending through the top of the boiler and thesmoke-box, of a fire-pot arranged within the boiler below the smoke-boxand provided with an inlet-tube, D, in its top, a movable tube, E,extending through the central opening in the boiler and smoke-box andresting with its lower en d upon the tube D, a stufling-box,f,surrounding the tube E, a plate, H, secured to the tube E above thestuffingbox, and springs J, interposed between the plate H and the glandof the stuffing-box, substantially as set forth.

3. The combination, with the boiler A and fire-box A', having an openbottom and provided in its top with an inlet-pipe, D, of a movable capor tube, E, closing said inlet-pipe and provided with a plate, H, adamper or pivoted plate, N, arranged in the open bottom of the fire-box,and a connectingrod and crank, whereby said damper is operated from theplate H, substantially as set forth.

L t. The combination, with the tire-box having the inlet-pipe D and madeopen in its bottom, of a damper, N, arranged in the open bot- IOC IIO

tom of the lire-box and provided with a Crank, a pin engaging in Saidlink, Substantially as 1o the tube or cap E, Closing the pipe D andproset forth, 'vided with a plate, H, a Shaft, h, mounted on Witness myhand this 20th day of )Im-eh, said plate and provided with drums I,having 1888.

5 cords 1', and a ratchet mechanism, K la, a de- ,T 1 1 1 pending lever,L, pivoted to said shaft, a rod, LEA) DER CT GILbERVl' p, attached tothe shaft h and provided in its Vtnesses: lower end with a link, and arod, o, pivo'ed to JNO. J. BONNER, the crank of the damper N andprovided with TOBIAS XVITMER, J 1.

